CN101164223A - Method for operating an inverter comprising an upstream step-up device - Google Patents
Method for operating an inverter comprising an upstream step-up device Download PDFInfo
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- CN101164223A CN101164223A CNA2006800130422A CN200680013042A CN101164223A CN 101164223 A CN101164223 A CN 101164223A CN A2006800130422 A CNA2006800130422 A CN A2006800130422A CN 200680013042 A CN200680013042 A CN 200680013042A CN 101164223 A CN101164223 A CN 101164223A
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- intermediate circuit
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 title 1
- 239000000446 fuel Substances 0.000 claims description 13
- 230000009466 transformation Effects 0.000 claims description 5
- 238000005070 sampling Methods 0.000 abstract 3
- 238000013459 approach Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
- H02M1/0087—Converters characterised by their input or output configuration adapted for receiving as input a current source
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Control Of Electrical Variables (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention relates to a method for operating an inverter (W) comprising a step-up device (H) which is upstream-connected by means of an intermediate circuit and is connectable to a direct-current source (G) with a variable reference sampling current (I<SUB>reference</SUB>), wherein said inverter (W) and the step-up device (H) are provided with an efficiency optimising working area, respectively. When the variable reference sampling current (I<SUB>reference</SUB>) is raised and the step-up device (H) approaches a pulse duty factor value (T), the intermediate circuit voltage (UDCW) is reduced and the variable reference sampling current (I<SUB>reference</SUB>) is stabilised, said intermediate circuit voltage (UDCW) is reraised. When the direct-current source (G) is in a permanent operational state, the inverter (W) and the step-up device (H) operate in the efficiency optimising working area thereof, respectively.
Description
Technical field
The present invention relates to be used to move the method that has through the inverter of the preposition stepup transformer (Hochsetzer) of intermediate circuit, this stepup transformer can be connected to the DC power supply with variable projected current predetermined value, and wherein inverter and stepup transformer have the working range of a distinctive efficient the best respectively.The invention still further relates to a kind of device that is used to implement this method in addition.
Background technology
Under the situation that will lower direct voltage be converted to higher alternating voltage, use and have the method for inverter and preposition stepup transformer.Regulate the output current of DC power supply and provide a direct voltage at this stepup transformer, this direct voltage is changed into alternating voltage and exports to load or AC network by inverter as intermediate circuit voltage.Regulate intermediate circuit voltage at this by inverter.
This method for example is used for photoelectric cell, fuel cell and DC power supply similar, that have variable projected current predetermined value are connected to load or AC network.Be interpreted as such projected current in this projected current predetermined value, it is for example pre-determined by the internal regulator of DC power supply, so that the energy that output is provided by DC power supply.Such DC power supply has the voltage characteristic curve that relies on electric current usually.By externalities, for example under the situation of photoelectric cell, change illumination condition, can change projected current.The adjusting of inverter and stepup transformer must be considered such dynamic state of run.Exist dissimilar according to prior art; The type in US2004/0207366 or US2004/0165408 for example.This intermediate circuit voltage is remained on almost constant value.Maximum for definite DC power supply of this value allows output voltage to play a decisive role, because do not allow to reach the maximum duty factor of stepup transformer before comprising this value.Otherwise the Current Regulation of stepup transformer no longer can be regulated projected current or cause the electric current that is caused by voltage to reduce.
From constant intermediate circuit voltage given in advance, draw the shortcoming of the gross efficiency of the unit that comprises stepup transformer and inverter.If stepup transformer runs on maximum duty factor, then stepup transformer has the highest efficient.Duty factor is starkly lower than maximum duty factor under the steady operational status of DC power supply, because also enough leeway will be set for dynamic projected current raises.
Summary of the invention
Therefore task of the present invention is to provide a kind of method compared with prior art that improve, that be used to move the inverter with preposition stepup transformer.
According to the present invention, solve this task by method with feature of in claim 1, mentioning.Therefore obtain such advantage, promptly in that not only inverter but also stepup transformer all move in the working range in distinctive efficient the best separately under the steady operational status of DC power supply.
Deduct the intermediate circuit voltage of about 30% reliable value of the average input voltage range value that equals inverter if predesignate transformation ratio that the input voltage of stepup transformer multiply by stepup transformer, be intermediate circuit voltage (U if the maximum input voltage value range of inverter (W) pre-determines as the best
DCW) the higher limit and the minimum input voltage range value of inverter (W) pre-determine and be intermediate circuit voltage (U
DCW) following restriction, then form the present invention especially valuably.
If the currency of intermediate circuit voltage is higher than such threshold value one it is 90% of the upper voltage limit value of the efficient optimum working zone of inverter in addition, the projected current predetermined value of DC power supply is higher than 125% and current projected current of current projected current near the maximum projected current that is defined as the restriction of DC power supply internal current, and then to drop to about 90% of currency be useful to intermediate circuit voltage.Realize that thus stepup transformer still keeps it to regulate dynamic and can not enter the state of maximum duty factor although projected current significantly raises.
Again the projected current predetermined value with DC power supply is consistent if make current projected current by regulating again of stepup transformer, and then step by step near best intermediate circuit voltage, stepup transformer is operated in the scope of efficient the best under this voltage.After each approximating step, check the intermediate circuit voltage that whether has reached best at this, and whether no longer because still dynamic projected current predetermined value and have the above-mentioned condition that reduces intermediate circuit voltage again.
For the method for implementing to be used to regulate intermediate circuit voltage is provided with a device, the output of inverter can be connected to load or AC voltage network in this device, and its input is connected to DC power supply through a stepup transformer.
A useful structure of this device is to be embodied as the stepup transformer that current potential separates, and this stepup transformer for example has a flat surface transformer.This stepup transformer is suitable for the high transformation ratio between input voltage and output voltage with being highly profitable.
This method is particularly suitable for fuel cell, photoelectric cell, battery pack, storage battery, DC generator or equivalent current supply are connected to a load or AC network.Projected current may alter a great deal and have obvious dependence between projected current and voltage in this DC power supply.By intermediate circuit voltage according to adjusting of the present invention, although in DC power supply, exist this dynamic changing process still to realize the greater efficiency of stepup transformer-inverter unit.
Be recommended in an integrated control unit in this device in addition, it is used to regulate inverter and stepup transformer, and wherein this control unit has a little processing.This is for example used a DSP (Digital Signal Prozessor, digital signal processor), it calculates the rated value that is used to regulate stepup transformer and inverter from current electric current and magnitude of voltage.
Description of drawings
Elaborate the present invention with embodiment with reference to the accompanying drawings.Accompanying drawing for example illustrates:
Fig. 1: described schematic representation of apparatus
Fig. 2: about the best intermediate circuit voltage curve of the voltage of DC power supply G
Fig. 3: about the maximum rated current value I of the voltage of DC power supply G
Soll_maxCurve
Fig. 4: the characteristic curve of fuel cell simulator
Embodiment
Figure 1 illustrates apparatus of the present invention and the DC power supply G that is connected of comprising stepup transformer H, having the inverter W of control unit S.DC power supply G for example is a fuel cell, has direct voltage U on its output
DCHStepup transformer H preferably exists with the current potential separated structures and intermediate circuit voltage U is provided on output
DCW, this intermediate circuit voltage is by the voltage U of DC power supply
DCHThe transformation ratio N (for example N=14) that multiply by the flat surface transformer that acts in stepup transformer H draws.
Given in advance to inverter W when starting, should be by this inverter W intermediate circuit voltage U
DCWRemain on the higher limit of the efficient optimum working zone of inverter W.This value is for example drawn as the straight line that is parallel to abscissa under the situation of 480V in Fig. 2.At this Fig. 2 is about fuel cell voltage U
DCHBest intermediate circuit voltage U
DCE SollThe demonstration predetermined value.Fuel battery voltage U up to about 25V
DCHTill, all constant lower limit U that remains on of intermediate circuit voltage
DCW_Soll_min=240V.Linearity is elevated to restriction U then
DCW_Soll_max=480V.At this limiting value U
DCW_Soll_minAnd U
DCW_Soll_maxThe scope of qualification inverter W operational efficiency the best and definite by the element of this version and inverter W.
Stepup transformer H is operated in the zone of Current Regulation.The voltage U of DC power supply G under the situation of stepup transformer H rising electric current
DCHReduce simultaneously.The occupation efficiency T of stepup transformer H increases thus.From the extraction voltage U that determines
DCHPlay stepup transformer H and partly reach blockade operation fully, and Current Regulation no longer is guaranteed.It is shown in Figure 2 that for example this is worth and is 42V.
In order to allow the current regulator of stepup transformer H further regulate electric current, reduce the intermediate circuit voltage U of inverter W
DCWFrom following formula, draw the rated value U of intermediate circuit voltage then
DCW_Soll:
U
DCW_Soll＝U
DCH*N-S
U (1)
Wherein N is transformation ratio and the S of stepup transformer H
UBe a safety value, it for example is in about 30% the order of magnitude of the average input voltage range of inverter W.This input voltage range value is equivalent to the best rated value U of intermediate circuit voltage in Fig. 2
DCW_SollAnd for example be in limiting value U
DCW_Soll_min=240V and U
DCW_Soll_maxBetween=the 480V.Average thus input voltage range value is at 360V, thereby can adopt the safety value S of about 100V
U
During owing to the voltage regulator of inverter W mute and regulate standby this safety value S that deducts
U, because because the power fluctuation voltage regulator of AC side is regulated very slow.
After starting is the rated value U of intermediate circuit voltage
DCW_SollDetermine a threshold value U
DCW_Schwelle, this threshold value is lower than higher limit U
DCW_Soll_maxAbout 10% (for example 430V).Reduce the rated value U of intermediate circuit voltage under the following conditions
DCW_Soll:
The current rated value U of-intermediate circuit voltage
DCW_SollBe higher than threshold value U
DCW_Schwelle,
-by the predetermined projected current predetermined value I of DC power supply G (for example by the fuel cell adjusting device)
VorgabeRising is greater than adding safety value S
I1Current projected current I
Soll25%.Wherein current projected current I
SollBe such value, it is current predesignates in the Current Regulation of stepup transformer H for rated value and along with projected current predetermined value I is followed the tracks of in the dynamic change of determining (for example 10A/s till the 2200W power bracket and the 3.3A/s when being higher than the 2200W power bracket)
VorgabeThe current projected current value of having measured is I
DCH, the rated value I in itself and the adjuster
SollConsistent.Safety value S
I1Consider to have the running status of reduced-current value, respond the evening that crosses that relatively causes adjusting of percentage difference under this running status.Safety value S
I1The order of magnitude be DC power supply G the maximum possible projected current 1.2% (the maximum possible projected current of DC power supply G is about 100A in the characteristic curve shown in Figure 4, the emulation fuel cell, safety value S
I1Be about 1.2A)
-current projected current I
SollThan maximum projected current I
Soll_maxA little safety value S
I2Wherein maximum projected current I
Soll_maxDepend on the current voltage U of DC power supply G
DCHAnd be defined as the internal current restriction of DC power supply G.Figure 3 illustrates the maximum projected current I of fuel cell
Soll_maxExemplary curves.I
Soll_maxFuel battery voltage U up to about 26V
DCHTill all equal zero, then up to the fuel battery voltage U of about 29V
DCHTill be elevated to about 81A precipitously, then up to the fuel battery voltage U of about 63V
DCHTill almost drop to zero once again continuously.Safety value S
I2Cause the rated value U that before the internal current restriction that reaches DC power supply G, reduces intermediate circuit voltage
DCW_SollSafety value S
I2Can adopt maximum amount to decide current value I
Soll_max2.5%, in this example case, be approximately 2.1A.
Therefore implementing voltage according to following conditions reduces:
U
DCW＞U
DCW_SchwelleAnd
I
Vorgabe＞1.25*I
Soll+ S
I1And
I
Soll＜I
Soll_max-S
I2 (2)
Reduce voltage according to following formula:
U
DCW_Soll＝(U
DCH*N-S
U)*0.9 (3)
If projected current value I
SollReach projected current predetermined value I
Vorgabe, then next just implement voltage once again and raise.For example realize according to the following steps raising:
Be suitable for at least 1.5 seconds:
U
DCW＜(U
DCH*N-S
U)*0.9+25V (4)
Intermediate circuit voltage rated value U then
DCW_SollBring up to 94%:
U
DCW_Soll＝(U
DCH*N-S
U)*0.94 (5)
Be suitable for at least 1.5 seconds:
U
DCW＜(U
DCH*N-S
U)*0.94+25V (6)
Intermediate circuit voltage rated value U then
DCW_SollBring up to 98%:
U
DCW_Soll＝(U
DCH*N-S
U)*0.98 (7)
Be suitable for at least 1.5 seconds:
U
DCW＜(U
DCH*N-S
U)*0.98+25V (8)
Intermediate circuit voltage rated value U then
DCW_SollBring up to 100%, and be suitable for formula (1) once again.If in step (4) to (8), satisfy condition (2), then jump back to step (3).
Claims (8)
1. one kind is used to move a method that has through the inverter (W) of the preposition stepup transformer (H) of intermediate circuit, and this stepup transformer can be connected to one and have variable projected current predetermined value (I
Vorgabe) DC power supply (G), wherein inverter (W) and stepup transformer (H) have a working region distinctive, that efficient is best respectively, it is characterized in that, at projected current predetermined value (I
Vorgabe) raise and the peaked situation of stepup transformer (H) near duty factor (T) under reduce intermediate circuit voltage (U
DCW), and at projected current predetermined value (I
Vorgabe) intermediate circuit voltage (U once again raises under the stable situation
DCW).
2. according to the method for claim 1, it is characterized in that, the input voltage (U of described stepup transformer (H)
DCH) transformation ratio that multiply by stepup transformer about 30% the safety value that deducts the average input voltage range value that equals inverter (W) predesignates the intermediate circuit voltage into the best, the maximum output voltage value range of inverter (W) is predesignated be intermediate circuit voltage (U
DCW) higher limit, and the minimum input voltage range value of inverter (W) predesignated be intermediate circuit voltage (U
DCW) lower limit.
3. according to the method for claim 1 or 2, it is characterized in that, if satisfy following conditions, intermediate circuit voltage (U then
DCW) be reduced to about 90% of currency:
-intermediate circuit voltage (U
DCW) currency be higher than such threshold value, it is upper voltage limit value about 90% of working range of efficient the best of inverter (W), and
Projected current predetermined value (the I of-DC power supply
Vorgabe) be higher than current projected current (I
Soll) 125%, and
-current projected current (I
Soll) the approaching maximum projected current that is defined as the internal current restriction of DC power supply (G),
And if:
-intermediate circuit voltage (U
DCW) currency be lower than best intermediate circuit voltage,
-current projected current (I
Soll) equal projected current predetermined value (I
Vorgabe),
If-can not satisfy provide above, reduce intermediate circuit voltage (U
DCW) condition,
Intermediate circuit voltage (U once again step by step then raises
DCW).
4. a device that is used to implement according to the method for one of claim 1 to 3 is characterized in that an inverter (W) is set, and its output is connected to load or AC network, and input is connected to DC power supply (G) through a stepup transformer (H).
5. according to the device of claim 4, it is characterized in that, form described stepup transformer (H) with the current potential separated structures.
6. according to the device of claim 4 or 5, it is characterized in that described DC power supply (G) is fuel cell, photoelectric cell, battery pack, storage battery, DC generator or equivalent current supply.
7. according to the device of one of claim 4 to 6, it is characterized in that this device comprises a control unit (S) that is used to regulate inverter (W) and stepup transformer (H).
8. according to the device of claim 7, it is characterized in that described control unit (S) has a microprocessor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005018596A DE102005018596A1 (en) | 2005-04-21 | 2005-04-21 | Method for operating an inverter with an upstream step-up converter |
| DE102005018596.7 | 2005-04-21 | ||
| PCT/EP2006/050513 WO2006111428A1 (en) | 2005-04-21 | 2006-01-30 | Method for operating an inverter comprising an upstream step-up device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101164223A true CN101164223A (en) | 2008-04-16 |
| CN101164223B CN101164223B (en) | 2010-05-26 |
Family
ID=36177598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800130422A Expired - Fee Related CN101164223B (en) | 2005-04-21 | 2006-01-30 | Method for operating an inverter comprising an upstream step-up device |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US8310851B2 (en) |
| EP (1) | EP1872469B1 (en) |
| JP (1) | JP2008537465A (en) |
| KR (1) | KR20080005273A (en) |
| CN (1) | CN101164223B (en) |
| DE (1) | DE102005018596A1 (en) |
| DK (1) | DK1872469T3 (en) |
| WO (1) | WO2006111428A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007049081A1 (en) * | 2007-10-12 | 2008-07-24 | Daimler Ag | Fuel cell system operating method for use in motor vehicle, involves regulating intermediate circuit voltage in electrical power line to preset value, where voltage is provided by fuel cell system and is regulated by regulator |
| US8050062B2 (en) * | 2010-02-24 | 2011-11-01 | General Electric Company | Method and system to allow for high DC source voltage with lower DC link voltage in a two stage power converter |
| US8604637B2 (en) | 2010-07-27 | 2013-12-10 | GM Global Technology Operations LLC | Method for high voltage bus control in fuel cell vehicles |
| CN103997061B (en) * | 2014-05-27 | 2016-05-18 | 东北电力大学 | Improve the parameter optimization control method of networking photovoltaic inverting system stability margin |
| US10614146B2 (en) * | 2015-12-17 | 2020-04-07 | Siemens Aktiengesellschaft | Adaptive demand response method using batteries with commercial buildings for grid stability and sustainable growth |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02211055A (en) * | 1989-02-09 | 1990-08-22 | Hitachi Metals Ltd | Abnormal operation detecting circuit of dc/dc converter |
| JP2827188B2 (en) * | 1992-09-02 | 1998-11-18 | 日本電信電話株式会社 | Power supply |
| JP3744679B2 (en) * | 1998-03-30 | 2006-02-15 | 三洋電機株式会社 | Solar power plant |
| US6486644B1 (en) * | 1999-05-28 | 2002-11-26 | Arris International, Inc. | Method and architecture for limiting input current to a broadband network power supply |
| DE19937410A1 (en) * | 1999-08-07 | 2001-02-15 | Elektro & Automatisierungstech | Three-phase solar converter for mains and island power operations adapts voltage levels from DC voltage generated by solar cells to the public mains power supply by raising and converting power. |
| US7733069B2 (en) * | 2000-09-29 | 2010-06-08 | Canon Kabushiki Kaisha | Power converting apparatus and power generating apparatus |
| DE10109151B4 (en) * | 2001-02-24 | 2008-04-30 | Flexiva Automation & Robotik Gmbh | Method and system for regulating the output variables of a fuel cell power or voltage generator |
| WO2003044939A1 (en) * | 2001-11-23 | 2003-05-30 | Danfoss Drives A/S | Frequency converter for different mains voltages |
| US6646849B1 (en) * | 2002-05-24 | 2003-11-11 | Long Well Electronics Corp. | Digital power inverter and method of controlling the same |
| JP2004015900A (en) * | 2002-06-05 | 2004-01-15 | Omron Corp | Electric power conversion system of push-pull circuit |
| US7099169B2 (en) * | 2003-02-21 | 2006-08-29 | Distributed Power, Inc. | DC to AC inverter with single-switch bipolar boost circuit |
| US6914418B2 (en) * | 2003-04-21 | 2005-07-05 | Phoenixtec Power Co., Ltd. | Multi-mode renewable power converter system |
| JP2005006383A (en) * | 2003-06-10 | 2005-01-06 | Ebara Densan Ltd | System interconnection inverter apparatus and its controlling method |
| JP4052195B2 (en) * | 2003-07-31 | 2008-02-27 | トヨタ自動車株式会社 | Voltage conversion device and computer-readable recording medium recording program for causing computer to execute control of voltage conversion |
| JP4629319B2 (en) * | 2003-08-06 | 2011-02-09 | パナソニック株式会社 | Power supply |
| JP2005086843A (en) * | 2003-09-04 | 2005-03-31 | Taiyo Yuden Co Ltd | Output control device of power supply source |
| US20050180175A1 (en) * | 2004-02-12 | 2005-08-18 | Torrey David A. | Inverter topology for utility-interactive distributed generation sources |
| JP2006054976A (en) * | 2004-08-16 | 2006-02-23 | Hitachi Ltd | Equipment with fuel cell mounted thereon |
| US7193872B2 (en) * | 2005-01-28 | 2007-03-20 | Kasemsan Siri | Solar array inverter with maximum power tracking |
-
2005
- 2005-04-21 DE DE102005018596A patent/DE102005018596A1/en not_active Withdrawn
-
2006
- 2006-01-30 WO PCT/EP2006/050513 patent/WO2006111428A1/en active Application Filing
- 2006-01-30 JP JP2008507030A patent/JP2008537465A/en active Pending
- 2006-01-30 DK DK06707892.3T patent/DK1872469T3/en active
- 2006-01-30 KR KR1020077026613A patent/KR20080005273A/en not_active Application Discontinuation
- 2006-01-30 CN CN2006800130422A patent/CN101164223B/en not_active Expired - Fee Related
- 2006-01-30 EP EP06707892.3A patent/EP1872469B1/en not_active Not-in-force
- 2006-01-30 US US11/918,808 patent/US8310851B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP1872469A1 (en) | 2008-01-02 |
| DE102005018596A1 (en) | 2007-01-25 |
| JP2008537465A (en) | 2008-09-11 |
| EP1872469B1 (en) | 2018-09-26 |
| US8310851B2 (en) | 2012-11-13 |
| DK1872469T3 (en) | 2018-12-17 |
| KR20080005273A (en) | 2008-01-10 |
| US20090212750A1 (en) | 2009-08-27 |
| WO2006111428A1 (en) | 2006-10-26 |
| CN101164223B (en) | 2010-05-26 |
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